1 files changed, 1 insertions, 1 deletions

diff --git a/Tile.cpp b/Tile.cpp
index 89524d0..1f49d96 100644
--- a/Tile.cpp
+++ b/Tile.cpp
@@ -9,7 +9,7 @@ Tile::Tile(Museum & museum, TileData data) : museum(museum) {
 	this->set_data(data);
 }
 
-void Tile::set_data(TileData data) {
+void Tile::set_data(TileData & data) {
 	this->data = data;
 	this->color = TileAppearance::get_color(this->data.type);
 	this->behavior = TileBehavior::get_strategy(this->data.type).clone(this->museum);